280096 has 12 divisors (see below), whose sum is σ = 551502. Its totient is φ = 140032.

The previous prime is 280069. The next prime is 280097. The reversal of 280096 is 690082.

It can be written as a sum of positive squares in only one way, i.e., 190096 + 90000 = 436^2 + 300^2 .

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 280096.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4345 + ... + 4408.

2²⁸⁰⁰⁹⁶ is an apocalyptic number.

It is an amenable number.

280096 is a deficient number, since it is larger than the sum of its proper divisors (271406).

280096 is an equidigital number, since it uses as much as digits as its factorization.

280096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8763 (or 8755 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 280096 is about 529.2409659125. The cubic root of 280096 is about 65.4288020724.

The spelling of 280096 in words is "two hundred eighty thousand, ninety-six".